title: [Total drinking water intake and sources of children and adolescent in one district of Shenzhen].
abstract: OBJECTIVE
  To describe total drinking water intake among primary and middle school students in one district of Shenzhen and to provide scientific evidence for adequate intakes of drinking water for different people in China.
  
  
  METHODS
  A total of 816 students from three primary and middle schools of Shenzhen was selected using three-stage random sampling method. The information on amounts and types of daily drinking water was recorded by subjects for seven consecutive days using a 24 hours measurement. The amounts and types of daily drinking water among different ages and between boys and girls were analyzed.
  
  
  RESULTS
  The average total drinking water of subjects was (1225+/-557) ml/d, and the consumption of total drinking water in boys ((1303+/-639) ml/d) was significantly higher than that in girls ((1134+/-478) ml/d, P<0.01). The consumption of total drinking water of secondary school students ((1389+/-541) ml/d) and high school student ((1318+/-641) ml/d) was no statistically difference, but was higher than primary school students ((1097+/-525) ml/d, P<0.01). The average plain water and beverages of the subjects was (818+/-541) ml/d and (407+/-294) ml/d respectively.
  
  
  CONCLUSIONS
  Major of fluid intake comes from drinking water in children and adolescenct of Shenzhen. The knowledge of drinking water of primary school students is need to comprehensive enough.
authors.affiliation: National Institute for Nutrition and Food Safety, Chinese Center for 100050, China Diseases Control and Prevention, Beijing, China. dusm9709@126.com
authors.forename: Songming
authors.initials: S
authors.lastname: Du
authors.forename: Xiaoqi
authors.initials: X
authors.lastname: Hu
authors.forename: Qian
authors.initials: Q
authors.lastname: Zhang
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Wang
authors.forename: Ailing
authors.initials: A
authors.lastname: Liu
authors.forename: Hui
authors.initials: H
authors.lastname: Pan
authors.forename: Shuang
authors.initials: S
authors.lastname: He
authors.forename: Guansheng
authors.initials: G
authors.lastname: Ma
mesh_terms: D000293:Adolescent; D002648:Child; D002681:China; D004327:Drinking Behavior; D060766:Drinking Water; D005260:Female; D006801:Humans; D008297:Male; D013334:Students; D011795:Surveys and Questionnaires
chemical_list: D060766:Drinking Water